I have used the Don't Fuck With Paste extension https://addons.mozilla.org/en-US/firefox/addon/don-t-fuck-wi... in Firefox for a few years. Seems to work well when I need it (and when I remember to try it, as it needs enabling on a per-site basis).

For removing tracking query parameters from the URL I've used ClearURLs https://addons.mozilla.org/en-US/firefox/addon/clearurls/ for a few years.

uBlock Origin is still fully functional in Firefox as well so I guess I could find a way to block the "Sign in with Google" prompts somehow with a custom rule.